Version 4
SHEET 1 3420 2540
WIRE -368 -544 -384 -544
WIRE -256 -544 -368 -544
WIRE 320 -544 -256 -544
WIRE 416 -544 320 -544
WIRE 608 -544 416 -544
WIRE 2416 -544 2320 -544
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WIRE 3120 -544 3104 -544
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WIRE 736 -32 720 -32
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WIRE 2016 -32 2000 -32
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WIRE 3360 64 3344 64
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WIRE 32 80 32 64
WIRE 32 80 0 80
WIRE 128 80 32 80
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WIRE 224 80 128 80
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WIRE 512 80 496 80
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WIRE 992 192 800 192
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WIRE 32 304 0 304
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WIRE 128 304 32 304
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WIRE 224 304 128 304
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WIRE 608 304 608 288
WIRE 608 304 592 304
WIRE 704 304 688 304
WIRE 800 304 800 288
WIRE 800 304 784 304
WIRE 896 304 880 304
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WIRE 992 304 976 304
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WIRE 1184 304 1168 304
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WIRE 736 416 720 416
WIRE 928 416 912 416
WIRE 1120 416 1104 416
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WIRE 3104 752 3056 752
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WIRE 3104 768 3104 752
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WIRE 800 800 800 464
WIRE 800 800 608 800
WIRE 992 800 992 464
WIRE 992 800 800 800
WIRE 1184 800 1184 464
WIRE 1184 800 992 800
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WIRE 1744 800 1744 464
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WIRE 1936 800 1744 800
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WIRE 2128 800 1936 800
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WIRE -256 816 -304 816
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WIRE 1184 816 1184 800
WIRE 1744 816 1744 800
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WIRE 320 928 -256 928
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WIRE 3120 928 3104 928
FLAG 32 -128 0
FLAG 32 512 0
FLAG 1184 912 0
FLAG 1184 -528 0
FLAG -368 -256 0
FLAG -368 640 0
FLAG 1296 176 OUT+
FLAG 992 -432 VCC
FLAG -464 160 VCC
FLAG -384 -544 VCC2
FLAG -384 928 VEE2
FLAG -400 64 OUT+
FLAG -624 64 in+
FLAG -464 224 VEE
FLAG -624 320 in-
FLAG -400 320 0
FLAG 2704 -128 0
FLAG 2704 512 0
FLAG 3104 -256 0
FLAG 3104 640 0
FLAG 1440 176 OUT-
FLAG 1744 -432 VCC
FLAG 3200 160 VCC
FLAG 3120 -544 VCC2
FLAG 3120 928 VEE2
FLAG 3136 64 OUT-
FLAG 3360 64 in-
FLAG 3200 224 VEE
FLAG 3360 320 in+
FLAG 3136 320 0
FLAG -624 128 in+
FLAG -624 240 in-
FLAG 992 816 VEE
FLAG 1744 816 VEE
SYMBOL npn -320 80 R0
SYMATTR InstName Q1
SYMATTR Value BD139
SYMBOL res -272 -304 R0
SYMATTR InstName R1
SYMATTR Value {bias}
SYMBOL pnp -320 304 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q2
SYMATTR Value BD140
SYMBOL npn -320 -48 R0
SYMATTR InstName Q3
SYMATTR Value BD139
SYMBOL pnp -320 432 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q4
SYMATTR Value BD140
SYMBOL npn 256 -352 R0
SYMATTR InstName Q5
SYMATTR Value BD139
SYMBOL pnp 256 736 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q6
SYMATTR Value BD140
SYMBOL res -272 576 R0
SYMATTR InstName R2
SYMATTR Value {bias}
SYMBOL npn 544 -80 R0
SYMATTR InstName Q7
SYMATTR Value MJL3281A
SYMBOL pnp 544 464 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q8
SYMATTR Value MJL1302A
SYMBOL npn 736 -80 R0
SYMATTR InstName Q9
SYMATTR Value MJL3281A
SYMBOL pnp 736 464 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q10
SYMATTR Value MJL1302A
SYMBOL npn 928 -80 R0
SYMATTR InstName Q11
SYMATTR Value MJL3281A
SYMBOL pnp 928 464 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q12
SYMATTR Value MJL1302A
SYMBOL res 432 -144 M0
SYMATTR InstName R3
SYMATTR Value 20
SYMBOL res 432 416 M0
SYMATTR InstName R4
SYMATTR Value 20
SYMBOL res 544 -144 M0
SYMATTR InstName R5
SYMATTR Value 10
SYMBOL res 544 416 M0
SYMATTR InstName R6
SYMATTR Value 10
SYMBOL res 736 -144 M0
SYMATTR InstName R7
SYMATTR Value 10
SYMBOL res 736 416 M0
SYMATTR InstName R8
SYMATTR Value 10
SYMBOL res 928 -144 M0
SYMATTR InstName R9
SYMATTR Value 10
SYMBOL res 928 416 M0
SYMATTR InstName R10
SYMATTR Value 10
SYMBOL res 592 80 R0
SYMATTR InstName R11
SYMATTR Value 0.22
SYMBOL res 592 192 R0
SYMATTR InstName R12
SYMATTR Value 0.22
SYMBOL res 784 80 R0
SYMATTR InstName R13
SYMATTR Value 0.22
SYMBOL res 784 192 R0
SYMATTR InstName R14
SYMATTR Value 0.22
SYMBOL res 976 80 R0
SYMATTR InstName R15
SYMATTR Value 0.22
SYMBOL res 976 192 R0
SYMATTR InstName R16
SYMATTR Value 0.22
SYMBOL res 608 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R17
SYMATTR Value 680
SYMBOL res 608 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R18
SYMATTR Value 680
SYMBOL res 800 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R19
SYMATTR Value 680
SYMBOL res 800 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R20
SYMATTR Value 680
SYMBOL res 992 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R21
SYMATTR Value 680
SYMBOL res 992 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R22
SYMATTR Value 680
SYMBOL npn 0 32 M0
SYMATTR InstName Q13
SYMATTR Value BD139
SYMBOL pnp 0 352 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q14
SYMATTR Value BD140
SYMBOL diode -80 -112 R0
SYMATTR InstName D1
SYMBOL diode -80 432 R0
SYMATTR InstName D2
SYMBOL res 16 80 R0
SYMATTR InstName R23
SYMATTR Value 270
SYMBOL res 16 192 R0
SYMATTR InstName R24
SYMATTR Value 270
SYMBOL res 16 -32 R0
SYMATTR InstName R25
SYMATTR Value 3.9k
SYMBOL diode 16 -48 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMBOL res 16 304 R0
SYMATTR InstName R26
SYMATTR Value 3.9k
SYMBOL diode 16 496 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMBOL diode 208 160 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D5
SYMBOL cap 112 96 R0
SYMATTR InstName C1
SYMATTR Value 0.1µ
SYMBOL cap 112 224 R0
SYMATTR InstName C2
SYMATTR Value 0.1µ
SYMBOL diode 208 288 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D6
SYMBOL voltage 1184 -416 M180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 22
SYMBOL voltage 1184 912 M180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 22
SYMBOL pnp -320 -320 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q15
SYMATTR Value BD140
SYMBOL npn -320 704 R0
SYMATTR InstName Q16
SYMATTR Value BD139
SYMBOL pnp -304 -384 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q17
SYMATTR Value BD140
SYMBOL npn -304 768 M0
SYMATTR InstName Q18
SYMATTR Value BD139
SYMBOL res -272 -544 R0
SYMATTR InstName R27
SYMATTR Value 56
SYMBOL res -272 816 R0
SYMATTR InstName R28
SYMATTR Value 56
SYMBOL res -352 -368 M0
SYMATTR InstName R29
SYMATTR Value 1k
SYMBOL res -352 640 M0
SYMATTR InstName R30
SYMATTR Value 1k
SYMBOL voltage -624 128 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 1.4 {f} 0.5m)
SYMBOL cap -176 -32 R0
SYMATTR InstName C3
SYMATTR Value 0.1µ
SYMBOL cap -176 352 R0
SYMATTR InstName C4
SYMATTR Value 0.1µ
SYMBOL res 336 -144 M0
SYMATTR InstName R33
SYMATTR Value 100
SYMBOL res 336 416 M0
SYMATTR InstName R34
SYMATTR Value 100
SYMBOL npn 352 -272 R0
SYMATTR InstName Q19
SYMATTR Value BD139
SYMBOL pnp 352 656 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q20
SYMATTR Value BD140
SYMBOL npn -320 -176 R0
SYMATTR InstName Q21
SYMATTR Value BD139
SYMBOL pnp -320 560 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q22
SYMATTR Value BD140
SYMBOL res -80 -288 R0
SYMATTR InstName R36
SYMATTR Value 50
SYMBOL res -80 560 R0
SYMATTR InstName R37
SYMATTR Value 50
SYMBOL voltage 608 -544 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V7
SYMATTR Value 6
SYMBOL voltage 608 816 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V8
SYMATTR Value 6
SYMBOL Opamps\\opamp2 -464 128 R0
SYMATTR InstName U1
SYMATTR Value LME49860
SYMBOL npn 1120 -80 R0
SYMATTR InstName Q23
SYMATTR Value MJL3281A
SYMBOL pnp 1120 464 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q24
SYMATTR Value MJL1302A
SYMBOL res 1120 -144 M0
SYMATTR InstName R38
SYMATTR Value 10
SYMBOL res 1120 416 M0
SYMATTR InstName R39
SYMATTR Value 10
SYMBOL res 1184 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R40
SYMATTR Value 680
SYMBOL res 1184 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R41
SYMATTR Value 680
SYMBOL res 1168 80 R0
SYMATTR InstName R42
SYMATTR Value 0.22
SYMBOL res 1168 192 R0
SYMATTR InstName R43
SYMATTR Value 0.22
SYMBOL res -512 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R31
SYMATTR Value 1k
SYMBOL res -400 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R32
SYMATTR Value 10k
SYMBOL res -512 336 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R44
SYMATTR Value 1k
SYMBOL res -400 336 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R45
SYMATTR Value 10k
SYMBOL npn 3056 80 M0
SYMATTR InstName Q25
SYMATTR Value BD139
SYMBOL res 3008 -304 M0
SYMATTR InstName R46
SYMATTR Value {bias}
SYMBOL pnp 3056 304 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q26
SYMATTR Value BD140
SYMBOL npn 3056 -48 M0
SYMATTR InstName Q27
SYMATTR Value BD139
SYMBOL pnp 3056 432 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q28
SYMATTR Value BD140
SYMBOL npn 2480 -352 M0
SYMATTR InstName Q29
SYMATTR Value BD139
SYMBOL pnp 2480 736 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q30
SYMATTR Value BD140
SYMBOL res 3008 576 M0
SYMATTR InstName R47
SYMATTR Value {bias}
SYMBOL npn 2192 -80 M0
SYMATTR InstName Q31
SYMATTR Value MJL3281A
SYMBOL pnp 2192 464 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q32
SYMATTR Value MJL1302A
SYMBOL npn 2000 -80 M0
SYMATTR InstName Q33
SYMATTR Value MJL3281A
SYMBOL pnp 2000 464 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q34
SYMATTR Value MJL1302A
SYMBOL npn 1808 -80 M0
SYMATTR InstName Q35
SYMATTR Value MJL3281A
SYMBOL pnp 1808 464 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q36
SYMATTR Value MJL1302A
SYMBOL res 2304 -144 R0
SYMATTR InstName R48
SYMATTR Value 20
SYMBOL res 2304 416 R0
SYMATTR InstName R49
SYMATTR Value 20
SYMBOL res 2192 -144 R0
SYMATTR InstName R50
SYMATTR Value 10
SYMBOL res 2192 416 R0
SYMATTR InstName R51
SYMATTR Value 10
SYMBOL res 2000 -144 R0
SYMATTR InstName R52
SYMATTR Value 10
SYMBOL res 2000 416 R0
SYMATTR InstName R53
SYMATTR Value 10
SYMBOL res 1808 -144 R0
SYMATTR InstName R54
SYMATTR Value 10
SYMBOL res 1808 416 R0
SYMATTR InstName R55
SYMATTR Value 10
SYMBOL res 2144 80 M0
SYMATTR InstName R56
SYMATTR Value 0.22
SYMBOL res 2144 192 M0
SYMATTR InstName R57
SYMATTR Value 0.22
SYMBOL res 1952 80 M0
SYMATTR InstName R58
SYMATTR Value 0.22
SYMBOL res 1952 192 M0
SYMATTR InstName R59
SYMATTR Value 0.22
SYMBOL res 1760 80 M0
SYMATTR InstName R60
SYMATTR Value 0.22
SYMBOL res 1760 192 M0
SYMATTR InstName R61
SYMATTR Value 0.22
SYMBOL res 2128 64 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R62
SYMATTR Value 680
SYMBOL res 2128 288 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R63
SYMATTR Value 680
SYMBOL res 1936 64 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R64
SYMATTR Value 680
SYMBOL res 1936 288 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R65
SYMATTR Value 680
SYMBOL res 1744 64 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R66
SYMATTR Value 680
SYMBOL res 1744 288 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R67
SYMATTR Value 680
SYMBOL npn 2736 32 R0
SYMATTR InstName Q37
SYMATTR Value BD139
SYMBOL pnp 2736 352 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q38
SYMATTR Value BD140
SYMBOL diode 2816 -112 M0
SYMATTR InstName D7
SYMBOL diode 2816 432 M0
SYMATTR InstName D8
SYMBOL res 2720 80 M0
SYMATTR InstName R68
SYMATTR Value 270
SYMBOL res 2720 192 M0
SYMATTR InstName R69
SYMATTR Value 270
SYMBOL res 2720 -32 M0
SYMATTR InstName R70
SYMATTR Value 3.9k
SYMBOL diode 2720 -48 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D9
SYMBOL res 2720 304 M0
SYMATTR InstName R71
SYMATTR Value 3.9k
SYMBOL diode 2720 496 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D10
SYMBOL diode 2528 160 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D11
SYMBOL cap 2624 96 M0
SYMATTR InstName C5
SYMATTR Value 0.1µ
SYMBOL cap 2624 224 M0
SYMATTR InstName C6
SYMATTR Value 0.1µ
SYMBOL diode 2528 288 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D12
SYMBOL pnp 3056 -320 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q39
SYMATTR Value BD140
SYMBOL npn 3056 704 M0
SYMATTR InstName Q40
SYMATTR Value BD139
SYMBOL pnp 3040 -384 M180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q41
SYMATTR Value BD140
SYMBOL npn 3040 768 R0
SYMATTR InstName Q42
SYMATTR Value BD139
SYMBOL res 3008 -544 M0
SYMATTR InstName R73
SYMATTR Value 56
SYMBOL res 3008 816 M0
SYMATTR InstName R74
SYMATTR Value 56
SYMBOL res 3088 -368 R0
SYMATTR InstName R75
SYMATTR Value 1k
SYMBOL res 3088 640 R0
SYMATTR InstName R76
SYMATTR Value 1k
SYMBOL cap 2912 -32 M0
SYMATTR InstName C7
SYMATTR Value 0.1µ
SYMBOL cap 2912 352 M0
SYMATTR InstName C8
SYMATTR Value 0.1µ
SYMBOL res 2400 -144 R0
SYMATTR InstName R77
SYMATTR Value 100
SYMBOL res 2400 416 R0
SYMATTR InstName R78
SYMATTR Value 100
SYMBOL npn 2384 -272 M0
SYMATTR InstName Q43
SYMATTR Value BD139
SYMBOL pnp 2384 656 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q44
SYMATTR Value BD140
SYMBOL npn 3056 -176 M0
SYMATTR InstName Q45
SYMATTR Value BD139
SYMBOL pnp 3056 560 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q46
SYMATTR Value BD140
SYMBOL res 2816 -288 M0
SYMATTR InstName R79
SYMATTR Value 50
SYMBOL res 2816 560 M0
SYMATTR InstName R80
SYMATTR Value 50
SYMBOL Opamps\\opamp2 3200 128 M0
SYMATTR InstName U2
SYMATTR Value LME49860
SYMBOL npn 1616 -80 M0
SYMATTR InstName Q47
SYMATTR Value MJL3281A
SYMBOL pnp 1616 464 R180
WINDOW 0 54 28 Left 2
WINDOW 3 55 63 Left 2
SYMATTR InstName Q48
SYMATTR Value MJL1302A
SYMBOL res 1616 -144 R0
SYMATTR InstName R81
SYMATTR Value 10
SYMBOL res 1616 416 R0
SYMATTR InstName R82
SYMATTR Value 10
SYMBOL res 1552 64 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R83
SYMATTR Value 680
SYMBOL res 1552 288 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R84
SYMATTR Value 680
SYMBOL res 1568 80 M0
SYMATTR InstName R85
SYMATTR Value 0.22
SYMBOL res 1568 192 M0
SYMATTR InstName R86
SYMATTR Value 0.22
SYMBOL res 3248 48 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R87
SYMATTR Value 1k
SYMBOL res 3136 48 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R88
SYMATTR Value 10k
SYMBOL res 3248 336 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R89
SYMATTR Value 1k
SYMBOL res 3136 336 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R90
SYMATTR Value 10k
SYMBOL res 1424 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R35
SYMATTR Value 0.01
TEXT 2544 800 Left 2 !.tran 2.5m
TEXT -80 744 Left 2 !.include BD139.mod
TEXT -80 768 Left 2 !.include BD140.mod
TEXT -80 792 Left 2 !.include MJL3281A.mod
TEXT -80 816 Left 2 !.include MJL1302A.mod
TEXT -80 840 Left 2 !.include LME49860.lib
TEXT 2544 880 Left 2 !;ac oct 100 0.1 100meg
TEXT 2544 824 Left 2 !.options plotwinsize=0
TEXT 2544 744 Left 2 !.param f 20k
TEXT 2544 848 Left 2 !.four {f} V(OUT+,OUT-)
TEXT 2544 768 Left 2 !.param bias 90